|
public static GetSub ( |
||
| cpt | ||
| mode | int | |
| return | FieldAccess |
|
private bool FnGetTo(uint targetPlaceId, uint mode, uint c)
{
_compact.Core.upFlag = (ushort)mode; // save mode for action script
_compact.Core.mode += 4; // next level up
Compact cpt = _skyCompact.FetchCpt(_compact.Core.place);
if (cpt == null)
{
// TODO: warning("can't find _compact's getToTable. Place compact is NULL");
return(false);
}
var raw = _skyCompact.FetchCptRaw(cpt.Core.getToTableId);
if (raw == null)
{
//TODO: warning("Place compact's getToTable is NULL");
return(false);
}
var getToTable = new UShortAccess(raw, 0);
while (getToTable.Value != targetPlaceId)
{
getToTable.Offset += 4;
}
// get new script
SkyCompact.GetSub(_compact, _compact.Core.mode).Field = getToTable[1];
SkyCompact.GetSub(_compact, (ushort)(_compact.Core.mode + 2)).Field = 0;
return(false); // drop out of script
}
private bool FnStartSub(uint scr, uint b, uint c)
{
_compact.Core.mode += 4;
SkyCompact.GetSub(_compact, _compact.Core.mode).Field = (ushort)(scr & 0xffff);
SkyCompact.GetSub(_compact, (ushort)(_compact.Core.mode + 2)).Field = (ushort)(scr >> 16);
return(false);
}
private void Stopped()
{
// waiting for another mega to move or give-up trying
//
// this mode will always be set up from a special script
// that will be one level higher than the script we
// would wish to restart from
Compact cpt = _skyCompact.FetchCpt(_compact.Core.waitingFor);
if (cpt != null)
{
if (cpt.Core.mood == 0 && Collide(cpt))
{
return;
}
}
// we are free, continue processing the script
// restart script one level below
SkyCompact.GetSub(_compact, _compact.Core.mode - 2).Field = 0;
_compact.Core.waitingFor = 0xffff;
_compact.Core.logic = L_SCRIPT;
LogicScript();
}
private void Alt()
{
// change the current script
_compact.Core.logic = L_SCRIPT;
SkyCompact.GetSub(_compact, _compact.Core.mode).Field = _compact.Core.alt;
SkyCompact.GetSub(_compact, _compact.Core.mode + 2).Field = 0;
LogicScript();
}
private bool FnTheyStartSub(uint mega, uint scr, uint c)
{
Compact cpt = _skyCompact.FetchCpt((ushort)mega);
cpt.Core.mode += 4;
SkyCompact.GetSub(cpt, cpt.Core.mode).Field = (ushort)(scr & 0xffff);
SkyCompact.GetSub(cpt, (ushort)(cpt.Core.mode + 2)).Field = (ushort)(scr >> 16);
return(true);
}
private bool FnInteract(uint targetId, uint b, uint c)
{
_compact.Core.mode += 4; // next level up
_compact.Core.logic = L_SCRIPT;
var cpt = _skyCompact.FetchCpt((ushort)targetId);
SkyCompact.GetSub(_compact, _compact.Core.mode).Field = cpt.Core.actionScript;
SkyCompact.GetSub(_compact, (ushort)(_compact.Core.mode + 2)).Field = 0;
return(false);
}
private void StopAndWait()
{
_compact.Core.mode += 4;
var scriptNo = SkyCompact.GetSub(_compact, _compact.Core.mode);
var offset = SkyCompact.GetSub(_compact, _compact.Core.mode + 2);
scriptNo.Field = _compact.Core.stopScript;
offset.Field = 0;
_compact.Core.logic = L_SCRIPT;
LogicScript();
}
/// <summary>
/// This function is basicly a wrapper around the real script engine. It runs
/// the script engine until a script has finished.
/// </summary>
private void LogicScript()
{
// Process the current mega's script
// If the script finishes then drop back a level
for (;;)
{
ushort mode = _compact.Core.mode; // get pointer to current script
var scriptNo = SkyCompact.GetSub(_compact, mode);
var offset = SkyCompact.GetSub(_compact, (ushort)(mode + 2));
offset.Field = Script(scriptNo.Field, offset.Field);
if (offset.Field == 0) // script finished
{
_compact.Core.mode -= 4;
}
else if (_compact.Core.mode == mode)
{
return;
}
}
}
private void ArAnim()
{
// Follow a route
// Mega should be in getToMode
// only check collisions on character boundaries
if (((_compact.Core.xcood & 7) != 0) || ((_compact.Core.ycood & 7) != 0))
{
MainAnim();
return;
}
// On character boundary. Have we been told to wait?
// if not - are WE colliding?
if (_compact.Core.waitingFor == 0xffff)
{ // 1st cycle of re-route does not require collision checks
MainAnim();
return;
}
if (_compact.Core.waitingFor != 0)
{
// ok, we've been told we've hit someone
// we will wait until we are no longer colliding
// with them. here we check to see if we are (still) colliding.
// if we are then run the stop script. if not clear the flag
// and continue.
// remember - this could be the first ar cycle for some time,
// we might have been told to wait months ago. if we are
// waiting for one person then another hits us then
// c_waiting_for will be replaced by the new mega - this is
// fine because the later collision will almost certainly
// take longer to clear than the earlier one.
if (Collide(_skyCompact.FetchCpt(_compact.Core.waitingFor)))
{
StopAndWait();
return;
}
// we are not in fact hitting this person so clr & continue
// it must have registered some time ago
_compact.Core.waitingFor = 0; // clear id flag
}
// ok, our turn to check for collisions
var logicList = new UShortAccess(_skyCompact.FetchCptRaw((ushort)_scriptVariables[LOGIC_LIST_NO]), 0);
ushort id;
while ((id = logicList[0]) != 0)
{ // get an id
logicList.Offset += 2;
if (id == 0xffff)
{ // address change?
logicList = new UShortAccess(_skyCompact.FetchCptRaw(logicList[0]), 0); // get new logic list
continue;
}
if (id == (ushort)(_scriptVariables[CUR_ID] & 0xffff)) // is it us?
{
continue;
}
_scriptVariables[HIT_ID] = id; // save target id for any possible c_mini_bump
var cpt = _skyCompact.FetchCpt(id);
if ((cpt.Core.status & (1 << ST_COLLISION_BIT)) == 0) // can it collide?
{
continue;
}
if (cpt.Core.screen != _compact.Core.screen) // is it on our screen?
{
continue;
}
if (Collide(cpt))
{ // check for a hit
// ok, we've hit a mega
// is it moving... or something else?
if (cpt.Core.logic != L_AR_ANIM)
{ // check for following route
// it is doing something else
// we restart our get-to script
// first tell it to wait for us - in case it starts moving
// ( *it may have already hit us and stopped to wait )
_compact.Core.waitingFor = 0xffff; // effect 1 cycle collision skip
// tell it it is waiting for us
cpt.Core.waitingFor = (ushort)(_scriptVariables[CUR_ID] & 0xffff);
// restart current script
SkyCompact.GetSub(_compact, _compact.Core.mode + 2).Field = 0;
_compact.Core.logic = L_SCRIPT;
LogicScript();
return;
}
Script(_compact.Core.miniBump, 0);
return;
}
}
// ok, there was no collisions
// now check for interaction request
// *note: the interaction is always set up as an action script
if (_compact.Core.request != 0)
{
_compact.Core.mode = C_ACTION_MODE; // put into action mode
_compact.Core.actionSub = _compact.Core.request;
_compact.Core.actionSub_off = 0;
_compact.Core.request = 0; // trash request
_compact.Core.logic = L_SCRIPT;
LogicScript();
return;
}
// any flag? - or any change?
// if change then re-run the current script, which must be
// a position independent get-to ----
if (_compact.Core.atWatch == 0)
{ // any flag set?
MainAnim();
return;
}
// ok, there is an at watch - see if it's changed
if (_compact.Core.atWas == _scriptVariables[_compact.Core.atWatch / 4])
{ // still the same?
MainAnim();
return;
}
// changed so restart the current script
// *not suitable for base initiated ARing
SkyCompact.GetSub(_compact, _compact.Core.mode + 2).Field = 0;
_compact.Core.logic = L_SCRIPT;
LogicScript();
}
